Grand Isle County, Vermont: hazard risk
FEMA rates Grand Isle County's overall risk Very Low (score 1.9 of 100, higher than 1% of rated U.S. counties). Its storm record holds 381 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Ice Storm | Relatively Low | 34.7 | $81K |
| Hurricane | Very Low | 34.5 | $40K |
| Earthquake | Very Low | 30.6 | $161K |
| Lightning | Very Low | 21.1 | $144K |
| Winter Weather | Very Low | 18.2 | $31K |
| Heat Wave | Very Low | 13.7 | $60K |
| Riverine Flooding | Very Low | 12.8 | $3.1M |
| Strong Wind | Very Low | 11.6 | $172K |
| Landslide | Very Low | 8.3 | $37 |
| Cold Wave | Very Low | 7.4 | $90K |
| Tornado | Very Low | 4.8 | $35K |
| Wildfire | Very Low | 4.6 | $3K |
| Hail | Very Low | 1.8 | $5K |
| Drought | No Rating | 0.0 | $0 |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| Winter storms | 196 | 0 | $5.2M | ||
| Severe thunderstorm wind | 62 | 0 | $1.3M | ||
| High wind and dust storms | 45 | 1 | $2.6M | ||
| Extreme cold | 29 | 0 | $196K | ||
| Hail | 18 | 0 | $47K | ||
| Floods | 13 | 0 | $4.3M | ||
| Heat | 7 | 0 | $643K | ||
| Lightning | 6 | 0 | $2.2M | ||
| Heavy rain | 4 | 0 | – |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Grand Isle County record: every hazard by year and month, the deadliest events and FEMA's declarations.